Montroydite
      Aurivillius K
      Acta Chemica Scandinavica 18 (1964) 1305-1306
      Least-squares refinement of the crystal structures of orthorhombic HgO and of
      Hg2O2NaI
      Locality: synthetic
      _database_code_amcsd 0011897

      CELL PARAMETERS:    6.6129   5.5208   3.5219   90.000   90.000   90.000
      SPACE GROUP: Pnma      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    128.579
      Density (g/cm3):     11.187
      MAX. ABS. INTENSITY / VOLUME**2:      438.6809689    
      RIR:     12.768
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                26.97          1.16        3.3064    2   0   0         2
                30.10        100.00        2.9692    0   1   1         4
                31.54         80.09        2.8366    2   1   0         4
                32.43         53.17        2.7604    0   2   0         2
                37.30         65.20        2.4106    2   0   1         4
                40.85          2.14        2.2092    2   1   1         8
                50.25         51.66        1.8157    2   2   1         8
                51.93         10.40        1.7609    0   0   2         2
                55.59          9.11        1.6532    4   0   0         2
                56.41         15.44        1.6310    0   3   1         4
                57.30         13.56        1.6080    2   3   0         4
                58.26          1.41        1.5837    4   1   0         4
                62.03         24.61        1.4961    2   1   2         8
                62.57         11.16        1.4846    0   2   2         4
                64.51         18.14        1.4444    4   1   1         8
                65.85         10.10        1.4183    4   2   0         4
                67.91          4.95        1.3802    0   4   0         2
                71.74          1.07        1.3156    4   2   1         8
                79.53          4.66        1.2053    4   0   2         4
                80.13         10.68        1.1978    2   4   1         8
                80.97         10.11        1.1874    2   3   2         8
                83.21          8.01        1.1611    4   3   1         8
                84.34          4.85        1.1483    0   1   3         4
                88.35          3.45        1.1063    2   0   3         4
                88.52          6.91        1.1046    4   2   2         8
================================================================================
       XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs
  For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.